Lieutenant Uhura says to Mr Spock “Could you please go shopping for me and buy one carton of milk, and if they have eggs, get 6!”
(Image from comicmix)
A short time later Spock comes back with 6 cartons of milk.
Uhura asks him, “Why did you buy 6 cartons of milk?”
Spock replied, “They had eggs.”
I had to think about it. 🙂